Hypericum calycinum

St. John’s-wort

USDA Zone: 5-9

Plant number: 7.355.050

Also called Rose-of-Sharon. A popular groundcover, with large golden-yellow flowers appearing throughout the summer and fall. Plants have upright stems of bright green leaves, forming a dense weed-proof patch. To encourage a bushy habit, pinch the growth tips in the spring for the first two to three seasons. Especially useful for stabilizing slopes. Excellent among shrubs and trees. Evergreen in mild winter areas. Drought tolerant once established. Space at 5 to 10 plants per square yard.

Further details for Hypericum calycinum

Optimal Growing Conditions

Appearance and Characteristics

Sun Exposure Full Sun or Partial Shade or Full Shade

Soil Type Normal or Sandy or Clay

Soil pH Neutral or Alkaline or Acid

Soil Moisture Dry or Moist

Care Level Easy

Flower Colour Yellow

Blooming Time Early Summer Mid Summer Late Summer Late Spring Early Fall Mid Fall